A groundbreaking book on the history of telomeres offering fresh advice on how to slow down aging and lengthen life. Nobel Prize-winning doctor Elizabeth Blackburn and leading health psychologist Dr. Elissa Epel have discovered biological markers called telomeres, which can help us understand how healthy our cells are and what we can do to improve them. The book specifically explores ideas including how biological age is not the same as chronological age, a biological basis for the mind-body connection, how sleep and diet can affect telomeres, and how mothers who are highly stressed during pregnancy have children with shorter telomeres. It also offers tools and advice on how to determine cellular age and telomere health. Doctor Elizabeth Blackburn was awarded the Nobel Prize in Physiology or Medicine in 2009 for her discovery of telomeres and their role in the aging process.